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| author | Marek Olšák <marek.olsak@amd.com> | 2014-03-02 03:56:18 +0400 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2014-03-03 13:54:19 +0400 |
| commit | 67e8e3f970ad747d3c854fb40f8ec0cecedd9089 (patch) | |
| tree | 9bbf509dfde9cd4a11fb35aca45a2ac3f35c7b69 /drivers/gpu/drm/radeon/radeon_kms.c | |
| parent | bda72d58a20120aee1f78eb17d7eddb955d6696b (diff) | |
| download | linux-67e8e3f970ad747d3c854fb40f8ec0cecedd9089.tar.xz | |
drm/radeon: track memory statistics about VRAM and GTT usage and buffer moves v2
The statistics are:
- VRAM usage in bytes
- GTT usage in bytes
- number of bytes moved by TTM
The last one is actually a counter, so you need to sample it before and after
command submission and take the difference.
This is useful for finding performance bottlenecks. Userspace queries are
also added.
v2: use atomic64_t
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_kms.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_kms.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 0b631ebeeb18..806506c03a79 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -486,6 +486,21 @@ static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file case RADEON_INFO_VCE_FB_VERSION: *value = rdev->vce.fb_version; break; + case RADEON_INFO_NUM_BYTES_MOVED: + value = (uint32_t*)&value64; + value_size = sizeof(uint64_t); + value64 = atomic64_read(&rdev->num_bytes_moved); + break; + case RADEON_INFO_VRAM_USAGE: + value = (uint32_t*)&value64; + value_size = sizeof(uint64_t); + value64 = atomic64_read(&rdev->vram_usage); + break; + case RADEON_INFO_GTT_USAGE: + value = (uint32_t*)&value64; + value_size = sizeof(uint64_t); + value64 = atomic64_read(&rdev->gtt_usage); + break; default: DRM_DEBUG_KMS("Invalid request %d\n", info->request); return -EINVAL; |